Will this exhaust system fit my 2005 Mustang GT?

Yes, this SLP LoudMouth axle-back exhaust system is specifically designed to fit the 2005-2010 Ford Mustang GT models equipped with either the 4.6L or 5.4L engine.

What is the main difference between an axle-back and a cat-back exhaust?

An axle-back exhaust system replaces the mufflers and tailpipes from the rear axle back. A cat-back system replaces everything from the catalytic converter back, including the mufflers and tailpipes.

Does this exhaust system come with new clamps or hardware?

This product includes the axle-back mufflers and tips. It is designed to bolt onto the factory exhaust connection points, but it's always recommended to check the manufacturer's installation guide or contact us to confirm if any additional hardware is needed for your specific vehicle.

SLP 2005-2010 Ford Mustang 4.6/5.4L LoudMouth Axle-Back Exhaust w/ 3.5in Tips

Specifications

Brand: SLP
Part #: M31014
UPC: 871782000980

SLP 2005-2010 Ford Mustang 4.6/5.4L LoudMouth Axle-Back Exhaust w/ 3.5in Tips

Name: SLP 2005-2010 Ford Mustang 4.6/5.4L LoudMouth Axle-Back Exhaust w/ 3.5in Tips
Brand: SLP
Price: 450.56 USD
Availability: InStock

$450.56

On Backorder — Expected to ship by May 14, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2005-2010 Ford Mustang 4.6/5.4L. SLP LoudMouth axle-back exhaust with 3.5in tips for a more aggressive sound.

Key Features

Fits 2005-2010 Ford Mustang GT and GT500 models with 4.6L or 5.4L engines.
SLP LoudMouth design offers a loud, deep exhaust tone.
Includes 3.5-inch polished stainless steel exhaust tips.
Axle-back design replaces mufflers and tips for a simpler installation.
Constructed with durable materials for longevity.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Ford Mustang 2005-2010

Product Details

If you're looking to give your 2005-2010 Ford Mustang GT or GT500 a more aggressive exhaust note, this SLP LoudMouth axle-back system is a solid option. This setup replaces the factory mufflers and tips with a less restrictive design, letting your 4.6L or 5.4L engine breathe a little easier and sound more like a muscle car should.

SLP's LoudMouth design is well-known for its ability to produce a loud, deep tone without excessive drone at cruising speeds. The system features 3.5-inch polished stainless steel tips that give your Mustang a more muscular look from the rear. Installation is straightforward as it's designed to bolt directly onto the factory connection points, meaning no welding or cutting is required for most setups.

This axle-back system is a popular choice for Mustang owners wanting a noticeable sound improvement without the complexity of a full cat-back system. You'll get a more engaging driving experience thanks to the improved exhaust sound.